TY - JOUR
T1 - Shredding and sieving thermoplastic composite scrap
T2 - Method development and analyses of the fibre length distributions
AU - Vincent, Guillaume Almire
AU - de Bruijn, Thomas A.
AU - Wijskamp, Sebastiaan
AU - Abdul Rasheed, Mohammed Iqbal
AU - van Drongelen, Martin
AU - Akkerman, Remko
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Recycling of thermoplastic composites has attracted considerable attention in the recent years. Several recyclingsolutions include shredding scrap to centimetre-sized flakes to retain long fibres, followed by a remanufacturingstep that prevents fibre breakage. Determining the exact fibre length distribution (FLD) for these routes iscrucial, as it is of importance for the processibility of the material as well as the mechanical performance ofthe recycled parts. In this paper, novel analysis methods are introduced to calculate FLDs based on photographsof flakes. The reliability of the method and of the sampling was found to be high. The relation between flakesize and FLD was studied, showing that offcut layup barely influences the FLD in comparison to flake size.The effects of shredding settings and sieving were studied, showing a strong correlation between machineparameters and FLD, whereas the offcut size was found to have no effect on FLD.
AB - Recycling of thermoplastic composites has attracted considerable attention in the recent years. Several recyclingsolutions include shredding scrap to centimetre-sized flakes to retain long fibres, followed by a remanufacturingstep that prevents fibre breakage. Determining the exact fibre length distribution (FLD) for these routes iscrucial, as it is of importance for the processibility of the material as well as the mechanical performance ofthe recycled parts. In this paper, novel analysis methods are introduced to calculate FLDs based on photographsof flakes. The reliability of the method and of the sampling was found to be high. The relation between flakesize and FLD was studied, showing that offcut layup barely influences the FLD in comparison to flake size.The effects of shredding settings and sieving were studied, showing a strong correlation between machineparameters and FLD, whereas the offcut size was found to have no effect on FLD.
U2 - 10.1016/j.compositesb.2019.107197
DO - 10.1016/j.compositesb.2019.107197
M3 - Article
SN - 1359-8368
VL - 176
JO - Composites. Part B : Engineering
JF - Composites. Part B : Engineering
M1 - 107197
ER -
